Type 3 - PSA Nitrogen Generation System Designed for: Dry or Pre-Action Fire Protection Systems (FPS) with a total capacity from 6,000 to 18,000 gallons 1.0 Nitrogen Generation Corrosion Inhibiting System 1.1 The Fire Sprinkler Contractor shall provide all required equipment, materials, labor and services needed to install a complete and operational Nitrogen Generation Corrosion Inhibiting System in order to service all dry and/or pre-action Fire Protection Systems (FPS), or as directed per the Design Engineer. Installation guidelines by the manufacturer shall be followed. 1.1.1 2.0 Nitrogen Generation System 1.1.2 3.0 Nitrogen Generation System Feed Air (Compressor) Packages 1.1.3 4.0 Leak Detection System 1.1.4 5.0 Fire Protection System Gas Purging Device 1.1.5 6.0 Supervisory Gas Monitoring Device Nitrogen Purity Senor 1.1.6 7.0 Air Maintenance Device 1.1.7 8.0 System Installation Protocol 1.1.8 9.0 System Startup and Technical Training 2.0 Nitrogen Generation System 2.1 The Fire Sprinkler Contractor shall provide and install a MICBlast FPS - Type 3 PSA (Pressure Swing Absorption) Nitrogen Generation System per the Nitrogen Generator Sizing Chart (2.12) 2.2 A single MICBlast FPS - Type 3 PSA Nitrogen Generation System shall provide Supervisory Pressure between 0-60 PSI to no more than (10) zones (zone = sprinkler piping plumbed from a single riser). 2.3 The MICBlast FPS - Type 3 PSA Nitrogen Generation System (FPS-2000 & FPS-3000) cabinet shall be floor mounted, with dimensions of 63 H x 20 W x 24 D (730 lbs). 2.4 The MICBlast FPS - Type 3 PSA Nitrogen Generation System shall provide a minimum of 95% Nitrogen purity to the FPS. 2.5 The MICBlast FPS - Type 3 PSA Nitrogen Generation System shall include a set of Particulate, Coalescing, and Absorbing filters (within the cabinet), sized properly for the required Compressed Air IN flow rates. 2.6 The Nitrogen purity outputted by the MICBlast FPS - Type 3 PSA Nitrogen Generation System shall be monitored and verified via a hand held portable or wall mounted stationary Quick- Check - Nitrogen Purity Sensor (see section 6.0). 2.7 The MICBlast FPS - Type 3 PSA Nitrogen Generation System shall be powered by 120V AC requiring an 8 AMP circuit. 2.8 The Fire Sprinkler Contractor shall run a ½ copper, galvanized, or black steel pipe or approved flex hosing, rated at 175 PSI compressed air line from the Air Compressor to the MICBlast FPS - Type 3 PSA Nitrogen Generation System. 2.9 For each MICBlast FPS Type 3 PSA Nitrogen Generation System the manufacturer shall provide a single (80) gallon Nitrogen Storage Tank. The Nitrogen Storage Tank shall be DOT or ASME rated for 240 PSI and shall be provided with ASME rated 100 PSI Safety Relief valve, on/off valve, and ¼ NPT I/O fitting.
2.10 The MICBlast FPS Type 3 PSA Nitrogen Generation System and Nitrogen Storage Tank shall be plumbed by the Sprinkler Contractor using ½ copper, galvanized or black steel pipe or approved flex hosing, rated at 175 PSI per drawing (2.13). 2.11 An Air Compressor shall be furnished and piped to provide feed air to the MICBlast FPS - Type 3 PSA Nitrogen Generation System. An air compressor by-pass shall also be installed so that either compressed air or Nitrogen can be sent to the Air Maintenance Device/s (see Drawing Set 2.13). 2.11.1 The Air Compressor shall be sized to achieve the 30 minute fill per the NFPA 13 Requirements (see Air Compressor Sizing Chart 3.4). 2.11.2 ½ copper, galvanized or black steel pipe or approved flex hosing, rated at 175 PSI shall be used when plumbing from MICBlast FPS - Type 3 PSA Nitrogen Generation System to the Nitrogen Storage Tank, then to the Air Maintenance Device/s. 2.12 Nitrogen Generator Sizing Chart (2.12) MICBlast - FPS "Type 3" Series Nitrogen Generator Feed Air Requirements MICBlast Model FPS gal Capacity* Dimensions Power Req. Amps SCFM Min. Working Pressure (PSI) FPS-2000 up to 12000 Gal 63 H x 20 W x 24 D 120V 8 15.0 110 PSI FPS-3000 up to 18000 Gal 63 H x 20 W x 24 D 120V 8 23.0 110 PSI * MICBlast Sizing: Add the gallons of each zone together to get the sum of all zones and then size the system accordingly. 2.13 Drawing Set (2.13) 2.14 Nitrogen Generation System Compliances 2.14.1 The MICBlast - Nitrogen Generation Corrosion Inhibiting System shall be designed, installed, tested, inspected and maintained to comply with all codes and standards relevant to the following specifications:
2.14.1.1 NFPA 13 : Standard for Installation of Sprinkler Systems 2.14.1.2 NFPA 25 : Standard for the Inspection, Testing and Maintenance of Water- Based Fire Protection Systems (FPS) 2.14.2 All devices and products will be in compliance with Section 23.1.5.2 (3) of NFPA13, Standard for the Installation of Sprinkler Systems, 2007 Edition. 3.0 Nitrogen Generation System Feed Air (Compressor) Packages 3.1 An Air Compressor shall be furnished and installed to both fill the largest zone of the FPS to pressure within 30 minutes per NFPA 13 Requirements and also provide clean, dry, oil free compressed feed air to the MICBlast FPS - Type 3 PSA Nitrogen Generation System. 3.1.1 The Air Compressor shall be sized to achieve the 30 minute fill per the NFPA 13 Requirements (see Air Compressor Sizing Chart in Section 3.4). 3.1.2 The Air Compressor shall be oil bathed and provided with an aftercooler, automatic tank drain, coalescing filter and either a membrane or refrigerated air dryer package. 3.1.3 ½ copper, galvanized, black steel or approved flex hosing rated at 175 PSI shall be used when plumping the Air Compressor. 3.1.4 A bypass shall be installed when piping the Air Compressor and the MICBlast - Type 3 PSA Nitrogen Generation System to the Air Maintenance Device/s (see Drawing Set 2.13). Ball valves shall be installed in line with the piping going to the Air Maintenance Device/s so either air from the Air Compressor or Nitrogen from the MICBlast - Type 3 PSA Nitrogen Generation System can be used to provide Supervisory Pressure to the FPS. 3.2 The Air Compressor shall be provided with a pressure switch to be field adjusted. 3.3 Electrical shall be provided for the Air Compressor per the manufacturers specifications. 3.4 Air Compressor Sizing Chart (3.4) Air Compressor Options Feed Air** Min. Gal. filled in 30 Min. (NFPA 13) Air Compressor Class* Dimensions Power Requirements Amps SCFM Working Pressure to (20 PSI) S.P. to (40 PSI) S.P. STS-NF-C-1-J Standard 22"W x 37"L x 25"H 115-230V/60Hz/1ph 11.1 / 5.5 2.7 100 PSI 400 Gal 200 Gal STS-NF-C-2-J Standard 22"W x 37"L x 30"H 115-230V/60Hz/1ph 10.6 / 5.3 3.6 140 PSI 550 Gal 275 Gal STS-NF-C-3-J Standard 20"W x 39"L x 34"H 115-230V/60Hz/1ph 18.4 / 9.2 6.4 140 PSI 1000 Gal 500 Gal STS-NF-C-4-J Standard 21"W x 39"L x 36"H 230V/60Hz/1ph 22 13.5 140 PSI 2200 Gal 1100 Gal STS-NF-C-5-J Standard 22"W x 39"L x 38"H 230V/60Hz/1ph 22 21.1 140 PSI 3400 Gal 1700 Gal STS-NF-C-6-J Standard 25"W x 63"L x 47"H 230V/60Hz/1ph 34.5 27.2 140 PSI 4450 Gal 2225 Gal STS-NF-C-7-J Standard 25"W x 63"L x 47"H 230-460V/60Hz/3ph 25/12.5 35.2 140 PSI 5700 Gal 2850 Gal STS-NF-C-2 Upgrade 23 W x 56 L x 50 H 230-460V/60Hz/3ph 15.8 / 7.9 8.5 150 PSI 1400 Gal 700 Gal STS-NF-C-3 Upgrade 23 W x 56 L x 50 H 230-460V/60Hz/3ph 21.2/10.6 17 150 PSI 2800 Gal 1400 Gal STS-NF-C-4 Upgrade 25 W x 60 L x 56 H 230-460V/60Hz/3ph 38.4/ 19.2 26 175 PSI 4250 Gal 2125 Gal *Class: The Standard oil bathed piston operated Air Compressor option will provide pure, clean air to the MICBlast FPS Type 3 Series Nitrogen Generator however the Upgrade option is an industrial grade, low db (quiet), rotary screw oil lubricated compressor with refrigerated dryer. **Air Compressor Sizing: Air compressor must be sized to provide the minimum feed air requirements to the MICBlast FPS - Type 3 PSA Nitrogen Generation System. Also check to make sure that the air compressor complies with NFPA 13 requirements (7.2.6.2.2), and will fill the largest zone to supervisory pressure within 30 minutes. If it does not comply, upsize air compressor accordingly.
4.0 Leak Detection System 4.1 The MICBlast FPS - Type 3 PSA Nitrogen Generation System shall be designed with an internal BlastOff - Leak Detection System containing an isolated dry contact rated up to 240VAC 16amps (NC&NO Contacts available). The Fire Sprinkler Contractor shall run a DC or AC signal line in ½ code approved electrical conduit from the MICBlast FPS - Type 3 PSA Nitrogen Generation System to the supervisory circuit on the Building Monitoring System. 4.1.1 The BlastOff - Leak Detection System is to send a signal to the Building Monitoring System should significant leaks develop within the FPS piping, prior to them becoming catastrophic and causing supervisory pressure to fall below specification. These leaks shall be addressed at that time by the Fire Sprinkler Contractor in order to minimize unnecessary runtime on the MICBlast - Type 3 PSA Nitrogen Generation System. 5.0 Fire Protection System Gas Purging Device 5.1 A single MICBlast - AutoPurge System shall be installed at the end of each Zone, at a high point within the FPS (see Drawing Set 5.6). 5.2 The AutoPurge System shall not require any electrical connection AC or DC. 5.3 The MICBlast - AutoPurge System shall have a connection allowing the Quick-Check - Portable or Fixed Nitrogen Purity Sensor to attach and sense the purity of Nitrogen within the FPS to ensure that proper Nitrogen purity levels have been attained. 5.4 The Fire Sprinkler Contractor shall adjust each MICBlast - AutoPurge System to purge the FPS per the MICBlast - AutoPurge System manufactures specifications outlined within the sizing chart located on the device. 5.5 The Fire Sprinkler Contractor shall confirm that the ball valve on each MICBlast - AutoPurge System is left in the open position during normal operation and shut off/taken out of service during hydro or static testing by turning the ball valve to the closed position. 5.6 Drawing Sets (5.6)
6.0 Supervisory Gas Monitoring Device Nitrogen Purity Sensor 6.1 Furnish either (1) Quick-Check - Portable Hand Held Nitrogen Purity Sensor per MICBlast FPS - Type 3 PSA Nitrogen Generation System and/or (1) Quick-Check - Fixed Mount Nitrogen Purity Sensor per Riser Room (to be installed on the largest zone). 6.1.1 The battery operated Quick-Check - Portable Hand Held Nitrogen Purity Sensor is to be connected during periodic inspections to the end of the MICBlast - AutoPurge System (see Drawing Set 5.6) to obtain a quick purity reading of the Nitrogen content within the FPS. 6.1.2 The Quick-Check - Fixed Mount Nitrogen Purity Sensor shall be wall mounted within 5 of a MICBlast - AutoPurge System located near the end of the largest zone (the Design Engineer can choose to recommend (1) of these devices per Zone if desired). 6.1.2.1 The Fire Sprinkler Contractor shall provide 110V AC power to the Quick- Check - Fixed Mount Nitrogen Purity Sensor and also a single twisted pair signal line in ½ code approved electrical conduit for an isolated dry contact rated up to 240VAC 16amps (NC&NO contacts available) to the supervisory circuit on the Building Monitoring System. 7.0 Air Maintenance Device (Note: Supplied by the Sprinkler Contractor) 7.1 The Air Maintenance Device shall be equipped with an adjustable pressure regulator (sized to meet Supervisory Pressure settings) for setting the maximum pressure on the FPS. 7.2 The Air Maintenance Device shall not contain a pressure switch. 7.3 The Air Maintenance Device shall be installed per the manufacturer s specifications. 8.0 System Installation Protocol 8.1 As specified by the Design Engineer, a MICBlast FPS Type 3 PSA Nitrogen Generation System shall be installed. Installation instructions as directed by the manufacturer shall be followed. An optional Corrosion Monitoring System is available upon request and shall be installed by the Sprinkler Contractor. The BlastOff, Quick-Check and MICBlast - AutoPurge System accessories shall be installed by the Sprinkler Contractor and no party shall remove or tamper with the devices. 8.1.1 The following services to be completed during installation of the Nitrogen Generation System: 8.1.1.1 Installation: 8.1.1.1.1 MICBlast FPS Type 3 PSA Nitrogen Generation System 8.1.1.1.2 Related products (see 3.0 thru 7.0) 8.1.1.1.3 As required, all piping, fittings, valves etc. 8.1.1.1.4 System compliance and pressure (leak) testing 8.2 Operating pressure range of the Dry or Pre-Action FPS shall be determined by the Fire Sprinkler Contractor. The Fire Sprinkler Contractor shall also set the system Air Maintenance Device accordingly for each zone to the proper setting. Final settings shall be implemented with input from the manufacturer. 8.3 The Fire Sprinkler Contractor shall confirm that all connections between Quick-Check Purity Sensors and the specified connection points have been successfully achieved as indicated by the manufacturer.
8.4 Following the installation of the Nitrogen Generation Corrosion Inhibiting System, the Fire Sprinkler Contractor will test the FPS leak rate to ensure that it conforms to NFPA 13 requirements (24.2.2.1). Note: For more information regarding any of these products, contact South-Tek Systems, 2940 Orville Wright Way, Suite 600, Wilmington, NC, 28405, phone: 910-332-4173. 9.0 System Startup and Technical Training 9.1 South-Tek Systems shall provide on-site guidance and training following the installation of the Nitrogen Generation Corrosion Inhibiting System. 9.2 Contact South-Tek Systems, 2940 Orville Wright Way, Suite 600, Wilmington, NC, 28405, Phone: 910-332-4173 for further information.